Conexant CX93610 DIFT JPEG Encoder, and CX20752 and CX20754 HD Audio Codecs

Conexant Systems introduced the CX93610 DIFT JPEG encoder, and CX20752 and CX20754 HD audio codecs. The CX93610 is a monolithic mixed signal ASSP that features a 656 camera interface, optional microphone input, low cost, low power and high image compression capability. The CX20752 and CX20754 features integrated stereo filterless class-D amplifier with patented Common Mode Scrambling technology capable of driving 2W-rms per channel at 1% THD+N into 4 ohm load. The CX93610 is priced at $5.00 each (in 1000 unit quantities). Pricing for the CX20752 and CX20754 start at $1.24 and $1.54, respectively (in 10 K quantities).

The CX93610 encoder offers a variety of specialized JPEG encoding techniques to highly compress and save image data in an internal 512KB/256KB frame buffer. A 2:1 and 4:1 scaler is available for image re-sizing, with a 4:2:0 sub-sampling conversion available to further reduce image file sizes — by up to 99%. With a microphone input and programmable allocated buffering, a 2- or 4-bit ADPCM audio session can be recorded simultaneously during image captures, providing a complete A/V solution with a flexible frame buffer for audio and video data storage. The CX93610 encoder is ideal for monitoring and surveillance camera applications, including PIR sensor with video, video intercom/door phones, baby monitors and remote home monitoring.

The CX20752 and CX20754 codecs are compliant with Intel’s high-definition audio specification 1.1, and the chips’ audio fidelity exceeds Microsoft WLP 4.0 desktop and notebook premium logo requirements. The new amplifiers feature two 24-bits stereo DACs that operate at sampling frequencies up to 192 kHz and two 24-bits stereo ADCs that operate at sampling frequencies up to 96 kHz. Both HD audio codecs can support multi-streaming and real-time communications applications. The CX20752 and CX20754 are ideal for high-quality audio for the mobile PC market, including notebooks, ultrabooks and tablets.

CX93610 DIFT JPEG Encoder Features

  • Integrated mixed-signal design for analog-to-digital image processing
  • On-chip 512KB/256KB frame buffer
  • Integrated analog components (ADCs, LCD driver, DC-DC converter)
  • Supports enhanced JPEG compression techniques and >1MP CMOS sensors
  • Processes both color and black and white images
  • JPEG, MJPEG, Differential JPEG, and DIFT Encoded JPEG, which reduces file sizes by up to 99 percent over standard JPEG
  • Low sleep mode power — 10nA and low operating power (target <15mA)
  • Frame by Frame Motion Detection with programmable thresholds
  • Privacy mode
  • I2C, SPI, and UART interfaces for flexible connectivity
  • Register-driven device
  • Optional microphone input records audio session simultaneously during image captures

CX20752 and CX20754 HD Audio Codecs Features

  • Two pairs of independent DACs and ADCs
  • Supports audio formats ranging from 16-24 bit, 44.1 kHz to 192 kHz for DAC and 44.1 kHz to 96 kHz for ADC
  • Stereo class-D amplifier providing 2W-rms per channel at 1% THD+N, and up to 2.8W-rms per channel at 10% THD+N into 4 ohm load with Spread Spectrum and Common Mode Scrambling
  • ProCoustic capless stereo headphone driver eliminates need for an external amplifier
  • Integrated capless headset with auto detect and switch between GND and Mic pins
  • Digital microphone PDM interface with boost supporting two digital microphone elements
  • I2S input and output interface available on CX20754
  • Microphone security control prevents unwanted recordings from any or all input ports
  • EQ and playback security control prevents unwanted coefficient loading and playback to speakers
  • PopShield enhances pop and click suppression
  • Hardware EQ and DRC with D3-Live allows external audio devices to play through internal speakers with full speaker frequency response compensation while in system stand-by
  • D-Flex enhanced power management features wake-on-beep
  • Compatible with Windows Vista, Windows 7 and the new Windows 8 Operation Systems
  • ALSA Linux audio driver compatible
  • Compliant with Intel high definition audio specification rev. 1.1
  • CX20752: 40-pin 5x5mm QFN package
  • CX20754: 48-pin 6x6mm QFN package

More info: Conexant Systems Inc.